Patient came with complaints of Polydipsia, hypercalciurea, nephrolithiasis, metabolic alkalosis. Possible cause is

Answer- A. Baters syndromeBater syndrome is an autosomal recessive disorder caused by mutation in gene coding for basolateral chloride channel (ClC-kb). There is loss of sodium, chloride, potassium and calcium in urine.The major clinical findings are hyponatremia, hypokalemia, polyurea, polydipsia, metabolic alkalosis, normal to lowBP, hypomagnesemia (only in some patients), hypochloremia, hypercalciuria (causing nephrocalcinosis), and growth